diff --git a/src/engine/helper/HL_Process.cpp b/src/engine/helper/HL_Process.cpp
index c573746e..363245e8 100644
--- a/src/engine/helper/HL_Process.cpp
+++ b/src/engine/helper/HL_Process.cpp
@@ -212,6 +212,11 @@ std::string OsProcess::execCommand(const std::string& cmd)
     return result;
 }
 
+int OsProcess::execSystem(const std::string& cmd)
+{
+    return system(cmd.c_str());
+}
+
 #include <poll.h>
 #include <sys/types.h>
 #include <sys/uio.h>
@@ -321,7 +326,7 @@ void OsProcess::killByPid(pid_t pid)
 {
     if (pid <= 0)
         return;
-    execCommand("kill -9 " + std::to_string(pid));
+    execSystem("kill " + std::to_string(pid));
 }
 
 #endif
diff --git a/src/engine/helper/HL_Process.h b/src/engine/helper/HL_Process.h
index 2f596ae4..e933198d 100644
--- a/src/engine/helper/HL_Process.h
+++ b/src/engine/helper/HL_Process.h
@@ -10,6 +10,7 @@ class OsProcess
 {
 public:
     static std::string execCommand(const std::string& cmdline);
+    static int execSystem(const std::string& cmdline);
     static std::shared_ptr<std::thread> asyncExecCommand(const std::string& cmdline,
                                    std::function<void(const std::string& line)> line_callback,
                                    std::function<void(const std::string& reason)> finished_callback,